Viking’s own 2009 factory service manual for the VUIM150DLSS documents its LED diagnostic flash-code system directly, giving a technician a manufacturer-confirmed way to read what stage of the fill/freeze/harvest cycle has actually failed. That’s especially useful on this platform, since the unit signals problems through a flash count rather than a text display.
Viking DUIM150DLSS
The DUIM150DLSS shares its ice-making mechanism and LED flash-code diagnostics with the standard-finish VUIM150DLSS, differing mainly in accepting a custom cabinetry panel on the front. Aside from careful panel removal before service, diagnosis follows the identical flash-code reading process documented for the standard-finish version.
Viking FGNI515
The FGNI515 produces soft, chewable nugget ice rather than the clear ice cubes the FGIM515 makes, which means it uses an auger mechanism to form and extrude ice rather than a freeze plate and harvest cycle. That auger is the part most specific to this machine’s repair profile, distinct from the freeze-plate diagnostics that apply […]
Viking FPNI515
The FPNI515 shares its auger-based nugget ice mechanism with the standard-finish FGNI515, differing mainly in accepting a custom cabinetry panel on the front. Diagnosis follows the same auger and fill-cycle isolation used on the standard-finish version, with panel removal as the main added step during service.
Viking Ice Machine Diagnostic LED On For Ten Seconds
Viking Ice Machine Diagnostic LED, Two Flashes
Viking Ice Machine Diagnostic LED, Three Flashes
Viking Ice Machine Diagnostic LED, Four Flashes
Viking Ice Machine Diagnostic LED Off
Viking FGIM515
The FGIM515 is Viking’s current 15-inch undercounter clear ice machine, built for continuous cycling between water fill, freezing against the plate, and harvest into the bin. Because the cycle runs continuously, a single failed stage — most often the harvest-assist heater or the condenser fan — tends to stop ice production outright rather than gradually […]

